1 files changed, 122 insertions, 0 deletions
diff --git a/include/drm/bridge/samsung-dsim.h b/include/drm/bridge/samsung-dsim.h
new file mode 100644
index 0000000000..6fc9bb2979
--- /dev/null
+++ b/include/drm/bridge/samsung-dsim.h
@@ -0,0 +1,122 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2022 Amarula Solutions(India)
+ * Author: Jagan Teki <jagan@amarulasolutions.com>
+ */
+
+#ifndef __SAMSUNG_DSIM__
+#define __SAMSUNG_DSIM__
+
+#include <linux/gpio/consumer.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_of.h>
+#include <drm/drm_mipi_dsi.h>
+
+struct samsung_dsim;
+
+#define DSIM_STATE_ENABLED		BIT(0)
+#define DSIM_STATE_INITIALIZED		BIT(1)
+#define DSIM_STATE_CMD_LPM		BIT(2)
+#define DSIM_STATE_VIDOUT_AVAILABLE	BIT(3)
+
+enum samsung_dsim_type {
+	DSIM_TYPE_EXYNOS3250,
+	DSIM_TYPE_EXYNOS4210,
+	DSIM_TYPE_EXYNOS5410,
+	DSIM_TYPE_EXYNOS5422,
+	DSIM_TYPE_EXYNOS5433,
+	DSIM_TYPE_IMX8MM,
+	DSIM_TYPE_IMX8MP,
+	DSIM_TYPE_COUNT,
+};
+
+#define samsung_dsim_hw_is_exynos(hw) \
+	((hw) >= DSIM_TYPE_EXYNOS3250 && (hw) <= DSIM_TYPE_EXYNOS5433)
+
+struct samsung_dsim_transfer {
+	struct list_head list;
+	struct completion completed;
+	int result;
+	struct mipi_dsi_packet packet;
+	u16 flags;
+	u16 tx_done;
+
+	u8 *rx_payload;
+	u16 rx_len;
+	u16 rx_done;
+};
+
+struct samsung_dsim_driver_data {
+	const unsigned int *reg_ofs;
+	unsigned int plltmr_reg;
+	unsigned int has_freqband:1;
+	unsigned int has_clklane_stop:1;
+	unsigned int has_broken_fifoctrl_emptyhdr:1;
+	unsigned int num_clks;
+	unsigned int min_freq;
+	unsigned int max_freq;
+	unsigned int wait_for_reset;
+	unsigned int num_bits_resol;
+	unsigned int pll_p_offset;
+	const unsigned int *reg_values;
+	u16 m_min;
+	u16 m_max;
+};
+
+struct samsung_dsim_host_ops {
+	int (*register_host)(struct samsung_dsim *dsim);
+	void (*unregister_host)(struct samsung_dsim *dsim);
+	int (*attach)(struct samsung_dsim *dsim, struct mipi_dsi_device *device);
+	void (*detach)(struct samsung_dsim *dsim, struct mipi_dsi_device *device);
+	irqreturn_t (*te_irq_handler)(struct samsung_dsim *dsim);
+};
+
+struct samsung_dsim_plat_data {
+	enum samsung_dsim_type hw_type;
+	const struct samsung_dsim_host_ops *host_ops;
+};
+
+struct samsung_dsim {
+	struct mipi_dsi_host dsi_host;
+	struct drm_bridge bridge;
+	struct drm_bridge *out_bridge;
+	struct device *dev;
+	struct drm_display_mode mode;
+
+	void __iomem *reg_base;
+	struct phy *phy;
+	struct clk **clks;
+	struct regulator_bulk_data supplies[2];
+	int irq;
+	struct gpio_desc *te_gpio;
+
+	u32 pll_clk_rate;
+	u32 burst_clk_rate;
+	u32 hs_clock;
+	u32 esc_clk_rate;
+	u32 lanes;
+	u32 mode_flags;
+	u32 format;
+
+	bool swap_dn_dp_clk;
+	bool swap_dn_dp_data;
+	int state;
+	struct drm_property *brightness;
+	struct completion completed;
+
+	spinlock_t transfer_lock; /* protects transfer_list */
+	struct list_head transfer_list;
+
+	const struct samsung_dsim_driver_data *driver_data;
+	const struct samsung_dsim_plat_data *plat_data;
+
+	void *priv;
+};
+
+extern int samsung_dsim_probe(struct platform_device *pdev);
+extern int samsung_dsim_remove(struct platform_device *pdev);
+extern const struct dev_pm_ops samsung_dsim_pm_ops;
+
+#endif /* __SAMSUNG_DSIM__ */